On-line monitoring system for arrester
A monitoring system and lightning arrester technology, applied in the direction of instruments, measuring electricity, measuring devices, etc., can solve the problem of lack of online automatic monitoring of lightning arresters, and achieve the effect of ensuring people's orderly life, improving power grid security, and stable system operation.
Inactive Publication Date: 2017-02-15
CHONGQING ZEQINGJU SCI & TECH DEV
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Problems solved by technology
[0004] The invention provides an online monitoring system for lightning arresters, which solves the technical problem in the prior art that the lightning arresters lack online automatic monitoring in the operating state
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[0013] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0014] Such as figure 1 As shown, a kind of lightning arrester on-line monitoring system provided by the embodiment of the present invention includes: the lightning arrester on-line monitor installed on the site and the monitoring management analysis software of the monitoring center. The sensor monitors the leakage current of the arrester in real time, and sends it to the monitoring center through the RS485 network. The monitoring center is responsible for receiving the real-time monitoring value of the arrester online monitor through the RS485 network, and realizes real-time display of arrester status parameters, historical data records and comparative analysis, early warning and alarm , Running state full record and report prin...
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The invention relates to the field of lightning protection, and discloses an on-line monitoring system for an arrester. The on-line monitoring system comprises an arrester on-line monitor installed in the field and monitoring and management analysis software of a monitoring center. The arrester online monitor is installed in the field, monitors the leakage current of an arrester in real time through a sampling sensor, and transmits to the monitoring center through an RS485 network. The monitoring center is responsible for receiving the real-time monitoring value of the arrester on-line monitor through the RS485 network to realize the functions of real-time display of arrester status parameters, historical data recording and contrast analysis, early warning and alarm, running status recording of the whole process, report printing and parameter setting. The invention realizes the unmanned on-line monitoring of zinc oxide arrester equipment of a substation, and judges the running safety status of the arrester more accurately and effectively by monitoring the resistive current or the whole current.
Description
technical field [0001] The invention relates to the field of lightning protection and lightning protection, in particular to an online monitoring system for lightning arresters. Background technique [0002] The arrester in the substation is an important protection device to protect the operation safety of electric equipment and prevent lightning accidents, and whether the arrester can operate safely for a long time under high voltage is an important content of the safety performance monitoring of the arrester. In order to prevent the aging of the arrester or its own insulation damage from causing an explosion and causing a large-scale power outage, people have adopted an annual power failure detection of the arrester or inserted an ammeter in series in the grounding circuit of the arrester, and used manual inspections to record the readings of the ammeter to judge the arrester. degree of aging and insulation damage. [0003] The deterioration of the arrester is monitored b...
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IPC IPC(8): G01R31/02
Inventor 常小燕
Owner CHONGQING ZEQINGJU SCI & TECH DEV